Foil Roof Deck Keeps Attic Cool

Radiant barriers are utilized to reduce summer heat gain in attics and help to improve the efficiency of green building envelopes.

Foil roof deck keeps attic cool. Designed to reflect the heat absorbed by a roof on hot sunny days radiant barrier foil keeps he attic air cooler and thereby reduces the amount. Once the solar radiation is absorbed some of the heat still gets ejected to the outside but much of it conducts downward through the roofing materials and roof deck. Foil insulation underlayment is recommended under a metal roof and in most cases the shiny side should be facing up but there s a catch. Regardless of the type of ventilation systems you have this is the best way to do it.

There it radiates down into the attic heating up the insulation the framing the ductwork and the boxes of christmas tree ornaments. Products 60 48 26 rolls. Either up the channel created by the foil between the roof deck and the foil or it will come into the attic below the foil. As discussed in the insulation buying guide radiant barrier foil insulation is made of a thin sheet of aluminum or other reflective material laid over attic insulation or secured to the roof rafters.

A radiant barrier can lower heat transfer from attics to the building below keep the attic space cooler and lower cooling costs by up to 17 in warmer climates. We take a look at how radiant barriers work the different types of radiant barriers and some of the. When done this way fresh outside air will enter the attic low at the soffit level and it will go one of two routes.